788b1f66cc
Went through section 4 of RFC 6455 making sure incoming handshake was valid with accompanying unit tests
56 lines
2.2 KiB
PHP
56 lines
2.2 KiB
PHP
<?php
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namespace Ratchet\Application\WebSocket\Util;
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/**
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* A helper class for handling HTTP requests
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* @todo Needs re-write...http_parse_headers is a PECL extension that changes the case to unexpected values
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* @todo Again, RE-WRITE - I want all the expected headers to at least be set in the returned, even if not there, set as null - having to do too much work in HandshaekVerifier
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*/
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class HTTP {
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/**
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* @todo Probably should iterate through the array, strtolower all the things, then return it
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* @param string
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* @return array
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*/
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public static function getHeaders($http_message) {
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$header_array = function_exists('http_parse_headers') ? http_parse_headers($http_message) : self::http_parse_headers($http_message);
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return $header_array + array(
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'Host' => null
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, 'Upgrade' => null
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, 'Connection' => null
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, 'Sec-Websocket-Key' => null
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, 'Origin' => null
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, 'Sec-Websocket-Protocol' => null
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, 'Sec-Websocket-Version' => null
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, 'Sec-Websocket-Origin' => null
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);
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}
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/**
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* @param string
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* @return array
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* This is a fallback method for http_parse_headers as not all php installs have the HTTP module present
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* @internal
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*/
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protected static function http_parse_headers($http_message) {
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$retVal = array();
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$fields = explode("br", preg_replace("%(<|/\>|>)%", "", nl2br($http_message)));
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foreach ($fields as $field) {
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if (preg_match('%^(GET|POST|PUT|DELETE|PATCH)(\s)(.*)%', $field, $matchReq)) {
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$retVal["Request Method"] = $matchReq[1];
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$retVal["Request Url"] = $matchReq[3];
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} elseif (preg_match('/([^:]+): (.+)/m', $field, $match) ) {
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$match[1] = preg_replace('/(?<=^|[\x09\x20\x2D])./e', 'strtoupper("\0")', strtolower(trim($match[1])));
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if (isset($retVal[$match[1]])) {
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$retVal[$match[1]] = array($retVal[$match[1]], $match[2]);
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} else {
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$retVal[$match[1]] = trim($match[2]);
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}
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}
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}
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return $retVal;
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}
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} |